WordWeb Online

1. Failure that results in a loss of position or reputation
   - ruin, ruination
    
2. The falling to earth of any form of water (rain or snow or hail or sleet or mist)
   - precipitation
    
3. A sudden decline in strength or number or importance
   "the downfall of the House of Hapsburg"
   - fall

Derived forms: downfalls

Type of: atmospheric condition, conditions, failure, weakening, weather, weather condition

Encyclopedia: Downfall